tag:blogger.com,1999:blog-8693614218792476252.post1175124904634584681..comments2016-11-27T14:38:30.343-08:00Comments on Looking For Detachment: At it AgainSilver Foxhttp://www.blogger.com/profile/03131032620978696727noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-8693614218792476252.post-24874215972927934292008-04-25T06:08:00.000-07:002008-04-25T06:08:00.000-07:00Chuck, amazingly this is one of my most popular pa...Chuck, amazingly this is one of my most popular pages! Thanks for the info and abstract. If you'd like, I (or you!) could contact the authors via email and send them this new info! (See <A HREF="http://highway8a.blogspot.com/2008/04/serpentosphere-update.html" REL="nofollow">update post</A>.)Silver Foxhttp://www.blogger.com/profile/03131032620978696727noreply@blogger.comtag:blogger.com,1999:blog-8693614218792476252.post-35606744955848852302008-04-25T03:04:00.000-07:002008-04-25T03:04:00.000-07:00I'm pretty sure this is crap, as seismic data does...I'm pretty sure this is crap, as seismic data doesn't allow for a world-wide a low velocity serpentinite zone in or near the moho. But it has been a decade since I was involved in seismic constraints on the lower crust or upper mantle.<BR/><BR/>Under thick continental crust, there is the additional problem that the temperature will be too high (>600) for serpentine to be stable.<BR/><BR/>Some constraints:<BR/>This abstract suggests that *If serpentine is present* it is generally less than 15% http://cat.inist.fr/?aModele=afficheN&cpsidt=14892708<BR/><BR/>This abstract seems to show that in the atlantic, serpentine is present, but not abundant.Chuckhttp://www.blogger.com/profile/09706100504739548720noreply@blogger.comtag:blogger.com,1999:blog-8693614218792476252.post-48921054037122512382008-04-24T22:09:00.000-07:002008-04-24T22:09:00.000-07:00Hello, Martin - good to hear from you. Thanks for ...Hello, Martin - good to hear from you. Thanks for the link to <A HREF="http://www.martinhovland.com/" REL="nofollow">your web page</A> and EOS paper. I had tried to find some information online related to the Serpentosphere, but had only found the two items. Stan Keith is an old colleague of mine, although he wouldn't recognize the pseudonym I'm using here. I'm sorry I missed the talk at GSN - when working, it seems like I only get to those maybe 3 - 4 times per year.Silver Foxhttp://www.blogger.com/profile/03131032620978696727noreply@blogger.comtag:blogger.com,1999:blog-8693614218792476252.post-47291010284572288702008-04-24T03:03:00.000-07:002008-04-24T03:03:00.000-07:00The serpentosphere's oily fingerprints shows up in...The serpentosphere's oily fingerprints shows up in the least expected locations all over the globe. For example at Chapopote, one of the Kampeche exposed salt stocks, exposed at 3000 m in the GoM. Check out my website at www.martinhovland.com, and also the paper in EOS, of 2005 where we describe how supercritical water (actually originating from serpentinization) not only brings salt to the surface, but also molten asphalt.martinnoreply@blogger.comtag:blogger.com,1999:blog-8693614218792476252.post-55225926084896336822008-04-02T15:14:00.000-07:002008-04-02T15:14:00.000-07:00Yes, I would have liked to have seen this one. One...Yes, I would have liked to have seen this one. One thing that S.K. does, or has in the past admitted to doing, is to stir up controversy in order to spark ideas. Many ideas lead nowhere, but some do.<BR/><BR/>By hydrothermal hydrocarbons, I personally meant hydrocarbons deposited by hydrothermal springs or waters, which is not to mean that would be their source.<BR/><BR/>It might have been in some comments elsewhere, or maybe in something I haven't posted yet: the occurrence of hydrocarbons in vugs in silicified, Hg-bearing, Au-anomalous serpentinite near the McLaughlin gold mine - that was what I was referring to. The hot water sources are thought to be deep, the hydrocarbons could be from Great Valley sediments (?) or some other source.<BR/><BR/>I think there is another major reference, Professional Paper or Bulletin, but maybe it's 1382-A.<BR/><BR/>1973 Bulletin 1382-A <BR/>Chemical composition of naturally occurring fluids in relation to mercury deposits in part of north-central California <BR/>Barnes, Ivan; Hinkle, M. E.; Rapp, J. B.; Heropoulos, Chris; Vaughn, W. W.<BR/><BR/>Also:<BR/><A HREF="http://pubs.usgs.gov/of/1999/ofr-99-0164/OF99-164.pdf" REL="nofollow">Characterization of Northern California<BR/>Petroleum by stable carbon isotopes<BR/>[paper edition]<BR/>by Paul G. Lillis1, Leslie B. Magoon, Richard G. Stanley, Robert J.<BR/>McLaughlin, and Augusta Warden<BR/>Open-File Report 99-164</A>Silver Foxhttp://www.blogger.com/profile/03131032620978696727noreply@blogger.comtag:blogger.com,1999:blog-8693614218792476252.post-35647590478122632942008-03-20T10:26:00.000-07:002008-03-20T10:26:00.000-07:00this strikes me as patently false! known direct s...this strikes me as patently false! known direct samples of the mantle at or near the moho are at slow spreading ridges (where both serpentinite and unhydrous mantle rocks are found) and by xenolith (to my knowledge, no serpentinite xenolith has ever been described). I think hydrothermal hydrocarbons describes a mechanism for thermally maturing organic material but not a source. Wish i could have seen the talk to see what new evidence is suggested! Alas, too far to travel.Fault Rockshttp://www.blogger.com/profile/17131186132737346311noreply@blogger.comtag:blogger.com,1999:blog-8693614218792476252.post-64375069575802772892008-03-16T16:31:00.000-07:002008-03-16T16:31:00.000-07:00It does sound like it is well thought through. Cou...It does sound like it is well thought through. Could be very interesting when some good prove comes out. And I really like the cartoon!The Lost Geologisthttp://www.blogger.com/profile/02950872285924945887noreply@blogger.com